/Engine/Source/Developer/GeometryProcessingInterfaces/Public/GeometryProcessingInterfaces/CombineMeshInstances.h
This data structure may be replaced in future w/ something more structured
struct FSourceInstanceList
TArray<FMeshIn...
InstanceGroupDatas
Sets of data shared across multiple instances
TArray<FMeshLO...
MeshLODSetInstances
TArray<FMeshLO...
MeshLODSets
Mesh sets shared across instances
TArray<FStatic...
StaticMeshInstances